Guard.



R. POLLAK.

ARI).

APPLIUATI LED AUG. 19, 1908. 967,971 Patented A 3, 1910.

a 2 8H -BEEET 1.

Fig- 1 INVEN Ric/9 orrd Pol] I B) firm/e M M ATTORNEYS WITNESSES:

R. POLLAK.

GUARD.

. APPLIOATIOH rILnn AUG.19. 190a.

Patented Aug. 23, 1910.

I2 sums-sum 2.

Fig. 4

INV N705 Ric]: araf Pollak.

ATTORNEYS UNTED STATES PATENT OFFICE.

RICHARD POLLAK, OF NEWARK, NEW JERSEY, ASSIGNOR TO ECK DYNAMO AND MOTORCOMPANY, A CORPORATION OF NEW JERSEY.

GUARD.

Specification of Letters Patent.

Application filed August 19, 1908.

Patented Aug. 23, 1910.

Serial No. 449,246.

To all whom it may concern:

Be it known that I, RICHARD POLLAK, subject of the Emperor ofAustria-Hungary, and resident of Newark, in the county of Essex andState of New Jersey, have invented certain new and useful Improvementsin Guards, of which the following is a specification.

My invention relates to improvements in guards, and in particular toguards for electric fans, blowers and the like devices.

The object of my invention is the provision of a device of thischaracter of light and simple construction which will be inexpensive ofproduction and which will be strong and rigidly made. To accomplishthese ends, I preferably employ a series of guard wires having theirouter ends connected together by a ring member or secured together inany other suitable manner and having their inner ends connected by anannular union member. This annular union or securing member willpreferably take the form of a disk made of sheet material having anannular groove therein and a circumferential flange, the flange havingopenings to receive the inner portions of the wires, the inner ends ofthe wires being bent circumferentially to lie in the annular groove, inthe member and the circumferential flange being bent over to lock theends of the wires in the groove. The so called annular member might beof circular shape in the form of a ring, polygonal or of any othersymmetrical or irregular shape. For larger sizes, rods would probably beusedin placeof wires, so the word wires is meant to include as well,rods or other like elements.

The preferred form of the invention is illustrated in the accompanyingdrawings, but of course changes might be made in the construction andarrangement of the parts, such as come within the intended scope of theclaims.

In said drawings: Figure 1, is a face view of the guard as applied to anordinary, electric fan. Fig. 2, is a broken detail view taken from theinner side of the union or securing member, showing how the inner endsof the guard wires are secured thereto. Fig. 8, is an edge View of theguard as applied to the fan-motor. Fig. 4, is a detached perspectiveview of one of the guard Wires. Fig. 5, is a like view of the annularsecuring member for the inner ends of the guard wires, before the wireshave been connected therewith. Fig. 6, is a broken detail view showingthe mode of connection between the guard wires and annular member beforethe confining flange of the annular member has been bent to place. Fig.7 is a sectional view of the same taken on the line 77 of Fig. 6. Fig.8, is a broken detail view to illustrate the connection between theguard wires and the bracing or ring member for holding the outer portionof the guard wires properly spaced.

Like characters of reference denote similar parts throughout the severalviews.

The guard wires 1, may be straight, curved or of any desired shape, thedrawings illustrating a conventional way of shaping the guard wires fora small fan. The outer ends of the guard wires are usually connectedtogether by a ring like member 2, though they might be otherwisesecured. hen so connected, the ends of the guard wires would be riveted,soldered, or otherwise fastened to this connecting or securing member.The inner ends of the wires are connected by a union member, which ispreferably in the form of a disk 3, and made of sheet material. Thisdisk or annular member has a confining flange 4, provided with slots oropenings 5, through which the inner portions of the guard wires extend,and is further provided with an annular groove 6, to receive the innerends of the guard wires, the wires being bent cir cumferentially as at 7so as to lie in the groove. After the inner ends of the wires are seatedin the groove, the confining flange is bent over the circumferential portions of the wires, as at 8, in Fig. 2, thereby locking the inner endsof the wires together. Besides serving as a connection for the innerends of the wires, this union member acts as a brace materially addingto the strength'and rigidity of the guard. This annular connectionmember might simply be in the form of a ring, or it could be of anyshape.

In order to hold the intermediate portions of the guard wires properlyspaced, a spacing member or ring 9, is usually employed, around whichthe guard wires are wrapped as shown at 10, in Fig. 8.

hat is claimed, is:

1. In a guard, guard wires, means connecting the outer ends of theWires, and means connecting the inner ends of the guard Wires comprisingan annular member having a confinin flange embracing the guard Wires,the said guard Wires extending substantially radially into the saidannular member and bent so as to run substantially circumferentially.

2. In a guard, guard Wires, means connecting the outer ends of theWires, and means connecting the inner ends of the guard Wires comprisingan annular member having a circumferential groove and a confiningflange,the said guard Wires extending substantially radially into the saidannular member and being bent so as to lie in the circumferentialgroove, the flange .being bent over the ends of the Wires so as toconfine them in the groove aforesaid.

3. In a guard, guard Wires, means securing the outer ends of the Wires,and means securing the inner ends of the Wires comprising an annularmember having a groove and a circumferential flan e provided withopenings through which t e Wires extend, sald wlres being bent so as tolie in the groove aforesaid, and the said flange being flange being bentover the inner end portions of the wires.

Signed at Belleville in the county of Essex and State of New Jersey this15th day of August A. D. 1908.

RICHARD POLLAK.

Witnesses:

JOHN J. CoNNELL, J. SMYLIE KINNEY.

